Outlet flush-tank and controlling mechanism.



B. R. HULL. OUTLET FLUSH TANK AND CONTROLLING MECHANISM.

APPLICATION FILED AUG. 16, ISIS.

1,187,147, Patented June 13, 1916. n

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BRET It. HULL, OF MANHATTAN, KANSAS.

OUTLET FLUSH-TAN K AND CONTROLLING MECHANISM.

Specification of Letters Patent.

Patented June 13, 1916.

Application filed. August 16, 1915. Serial No. 45,764.

To all whom it may concern Be it known that I, BRET R. HULL, of Manhattan, in the county of Riley and State of Kansas, have invented certain new and useful Improvements in Outlet Flush- Tanks and Controlling Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Ordinarily, I the outer valves for flush tanks have plungers, which when raised are supposed to remain in elevated position until the tank completely empties, and then reseat, but it has been found in practice that these plungers seldom wait the required length of time, with the result that the tank discharges only a portion of its contents.

It is to overcome the, above objections that I have devised my improved flush valve and controlling mechanism therefor.

The object of my invention is to provide an improved outlet flush tank and controlling mechanism which is adapted to hold the valve in elevated position until the tank is completely emptied or flushed.

A further object of my invention is to provide a strong and durable outlet valve and control readily adapted to all types of flush tanks, and which will operate at high efliciency under all conditions.

With this and other objects in view, my invention consists in the novel features hereinafter described, with reference to the accompanying drawing, and more particularly pointed out in the appended claims.

'Referring to the drawing: Figure 1 is a vertical sectional view taken through a flush tank, and showing my improved outlet valve and controlling apparatus in the position in which they rest when the tank is full; Fig. 2 is a horizontal sectional view of my outlet valve taken on line 22 of Fig. 1; Fig. 3 is a similar view taken on the line 33 of Fig. 1.

In the drawings, 1 represents a flush tank which may be of any type, and is provided with the ordinary water outlet3, the rocking lever 3 for raising the .outlet valve, and the usual chain 4 for operating the rocking lever. This mechanism so far described isof the usual or ordinary character, and forms no part of my invention- The bottom of the tank is provided with an aperture 5, through which passes from the inside a screw-threaded boss 6 of an outlet valve seat 7 and a nut 8 engages said boss to secure the outlet valve and its control to said tank. A spider 9 extends across said boss 6, and a guide 10 has its lower end screwed into said spider, the upper end of the guide rod being provided with a stop 11 for the purpose of preventing the outlet valve hereinafter described from rising above a certain level.

The outlet valve plunger itself comprises a hollow cylindrical member 12, provided at its ends with spider caps 13 and 14:, each of which has an aperture 15 and 16 for the purpose of allowing the member 12 to slide vertically on the rod 10. A spider cap 14 is also provided onits periphery with a recess 17, in which is fitted siphon washer 18 for engagement with the valve seat. The rocking lever '3 is forked as shown at 3*, and engages the under surface of the spider cap 13, in order to elevate the valve when the chain 4 is pulled.

The matter so far described relates to the outlet valve, and its raising means, and I shall now proceed to describe the mechanism which controls the valve in its elevated position, and prevents the same from descending until the tank has completely flushed. v

Pivoted at 19 to the valve seat 7 is a verti cally rising link 20 in the upper end of which is swiveled a lever 21 which is provided at one end with a ring 22 that surrounds the hollow valve member .12, and at its opposite end with a float 23.

As before mentioned, Fig. 1 illustrates the position of the mechanism when the tank is filled, showing the ring 22 binding on all points around the valve member 12, and the float 23 in its highest position. When it is desired to operate the outlet valve, the chain 4. is pulled, and this causes therocking lever 3 to lift the valve member 13 to allow the water to escape down through the boss 6. As the member 12 is raised, it lifts the ring 22 to the position shown in dotted lines in Fig. 1, when it will slide through the same until it reaches its highest position. Then the float 23 again rises and returns the ring 22 to its original binding position on the member 12, as shown in full lines in Fig. 1.

*When the water falls to a predetermined level, the fi0at23 descends with the water,

the edge of the ring 22 nearest the float rises in contact with the member 12, and prevents sald member from droppmg, and as the ring 22 rises it forces the upper end of the link 20 away from the member 12 until the float 23 approaches its lowermost position, when said float holds the ring 22 to a position where it does not contact with the member 12, whereby the said member is permitted to fall and close the valve. As the tank again fills, it lifts the float 23, and causes the ring 22 to again descend and bind on the valve member 12.

From the foregoing it will be seen that I have provided a novel device in which the valve slides on a guide rod, and in which the controlling ring surrounds the valve, whereby an even pressure onthe valve plunger is provided, and this acts to prevent the same from getting out of order, and obviates adjustment on account of the minimum liability of wear.

It will be apparent to those skilled in the art that numerous changes may be made in my device without departing from the spirit of my invention or sacrificing any of its advantages.

What I claim and desire to secure by Letters Patent is:

1. An outlet valve for closet flush tanks comprising a valve seat, a plunger cooperating therewith, a movable fulcrum provided on said valve seat, a lever pivoted on said fulcrum, a ring provided on one end of said lever and surrounding said plunger, and a float provided on the other end of said lever.

2. An outlet valve for flush tanks comprising a valve seat, a plunger cooperating therewith, a link pivoted to said valve seat, a lever pivotally mounted on said link, a ring on one end of said lever and surrounding said plunger, and a float provided on the other end of said lever.

3. An outlet valve for closet flush tanks,

comprising a valve seat, a guide rod carried thereby, a plunger slidably mounted on said guide rod, a link pivoted to said seat, a lever pivotally mounted on said link, a ring provided on one end of said lever and surrounding said plunger, and a float provided on the other end of said lever.

4-. An outlet valve for closet flush tanks comprising a valve seat, a guide rod carried thereby, a hollow plunger slidingly mounted on said guide rod, a link pivoted to said valve seat, a lever pivotally mounted on said link, a ring provided on one end of said lever and surrounding said operating plunger, and a float provided on the other end of said lever.

In testimony whereof, I have signed this specification in the presence oftwo subscribing witnesses.

BRET R. HULL.

Witnesses S. J. PRATT, C. A. LINBOCKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatenta,

Washington, D. C." 

